Gkain-cleawee



G. 'LEACH.

Grain Cleaner.

No. 12,512. Patented March 13, I855.

all me hae Be it known thatfl, saoRet ies, of Qwego, ,in thedcountyfiof Tiogall and State of-New York}; havehinvented a new andIInfelts w istl r a Figure? 1*isavertha1 section or my 1111- proved machine the plane of section being through thecenter i2 isalso avertic'al section of (10,: the ,plane of section being i 1 through 1thebla:st spout a short distance j, u from the centenof'the machine but parallel with -theplane 'offsecti on of Fig. 1. Fig. 3 Q is a faoe view .offithe, underor bed stone. 1 18a face view of the top 1. stone or runner. i

t Similar lettersofreference indicate correspo'nding parts intheuseveral figures.

This invention relates to a new and improved machine for r cleaning grain, and i consists 1n dressing ;or fLIIIOWIHgthQ stones in a peculiarymanner as will be hereafter fully shown and described.

To enable others skilled in the art tofully understand and; constructrny .invention, I

' .willproceedto describeit.

. A represents asuitab-le frame work co-nstructed in anyproper manner to support the several parts of the machine.

y i B represents. a bed stone and O is the i runner; Thebedstone B is permanently secured onthe upper part of the frame work A and a spindle D runs through its center as usual, the lowerpend of said spindle being stepped ina bridgeltree E, which is adjusted by a screw rod. F. u

The spindle D hasjadriverG on its upper *part which is in theforin of a cross, or it maybe described as having four arms (a) see'Fig. 3, "which project radially from a 1 boss or hub (6) which fits in the spindle D. The eye o-ftherunner G has a metaltube H fitted within itand at the lower endof this tube there are four sockets ,which correspond to the. arms (a) of. the driver 0 andin which socketsthe arms (a) fit when the runner isadjusted over the bed stone B, see Fig. 1. Through each socket: (0) there is a verticalset screw- (d) as shown in Figs.

. h fa f f thefbed stone B has f r proved Machine for. Cleaning Grain; and LI douhereby declare that the renewing a i t t earfandrxactdescriptioiiof the same, 1 reference being had to i the annexed draw-w i ingsgniaking la. partof this: specification, in

1mm" smwnnrr OF CE- itAIN-otEANnn.

Specification oe eaeeratea No. 12,512,v dated March 13, 1855.

grooves or furrows (6) cut in it tangential wlth the center hole through which the spindle D passes. The grooves or furrows (e) extend outwardabout half way between the spindle and periphery of the stone see Fig. 3. At the edge of the face of the stone there-are four grooves or furrows (f) which areir somewhat curved and. extend inward nearly half way to the spindle D.

The faceof the runner C, has four grooves or furrows cut in it, which are also curved and extend from the edge of the runner about half way-to the eye of the runner'see Fig. at. Between these grooves or furrows (g) there are grooves or fur rows (7a) which are curved from the edge of the runner to points (2') near the eye and from the points (2') to the eye or tube H the grooves or furrows are tangential with the eye or tube H. Around the stones B, C, there is a curb I formed of perforated metal or wire cloth see Figs. 1 and 2.

On the lower part of the frame work A at one side there is a fan box J, see Figs. 1 and 2, which incloses a fan K, see Fig. 2, and L is a horizontal spout which communicateswith the fan box J. The spout Loommunicateswith the lower part of a vertical spout M having a screen N over its upper end and a slide 0 which works over an opening P in the upper part of the spout M at its outer side. Q is a hopper on the upper part or top of the curb I.

R is a driving pulley on the fan shaft S and'T represents a cone of pulleys on the spindle D. U is aspout leading from the stones B, C, to the spout M. u

The grain to be cleaned is placed in the hopper Q and motion is given to the runner C and fan K. The grain passes down be tween the two stones B, C. The tangential. portions of the grooves or furrows (h) in the face of the runner C and the tangential grooves or furrows (e) in the face of the bed stone B, keep the eye clear or free as they conduct the grain quickly toward the edges of the stones, while the curved portions of the grooves or furrows (g) and grooves or furrows (f) in the bed stone retard the passage of the grain outward so that it cannot pass too quickly through or between the stones. The stones are not placed very closely together as it is designed that the gi'ai shall be scoured 0r rubbed endwise by the stones, for the purpose of taking out the eyes of the grain, and scouring oil the fuzz that is attached to the ends of the grain.

The stones are adjusted the proper distance apart by raising or lowering the bridge tree E by means of the screw rod F. The parallelism of the two stones is preserved by adjusting the set screw (cl) in the sockets (0) as these set screws rest upon the arms (a). The dust that is scoured oii' the grain passes through the perforated or wire cloth curb I.

The grain after passing between the stones B, C, falls through the spout U into the spout M and the blast generated by the fan K forces out the dust, chafi, chess and other light impurities through the opening P while the sound grain by its superior gravity falls through the blast and passes out at the lower end of the spout M. The screen N prevents the lighter sound grain from passing out at the top of the spout M, the grain striking it and rebounding backward and falling down the spout M. The black arrows Fig. 2 show the direction of the blast and the red arrows show the direction of the sound grain.

The above machine cleans Wheat efi'ectually of smut and deprives the grains of wheat of their eyes, which cause the flour to be speckled with fine yellowish spots. It

will also hull rice, and clean buckwheat per- I GEORGE LEACH.

Witnesses MANSON MUNGER, CHARLES A. MUNGER. 

